Means for insulating the supports of electric conduits.



PATENTBD JAN. '2, 1908.

0. E. EGNER. MEANS FOR INSULATING ms SUPPORTS 0F ELECTRIC .GONDUITS.

'AYYLIOATIOK FILED 170V. 16.1906.

QM We W UNITED STATES PATENT OFFICE.

CARL EMIL EGNER, OF STOCKHOLM, SWEDEN.

i MEANS FOR INSULATIN G THE SUPPORTS OF ELECTRIC CONDUITS.

Toall whom it may concern: i. i

Be it known that I, CARL EMIL EGNER, a subject of the King of Sweden, and a resident of Stockholm, in the Kingdom of Sweden, eng'ineer, have invented certain new and useful mprovements in Means for Insulatin the Supports of Electric Conduits, of whic the following is a specification, reference being made'to the accompanying drawing.

It has heretofore been proposed to interpose between an insulator and the support whereon it is mounted, a ca of pa er or of other suitable material to ll up t e space between the insulator and the support and thereby secure the insulator on the support as well as insulate it from the same. -As, however, the spaces within the insulators which the supports are to occupyvary indiameter in different insulators, and as the di+ ameter of the supports may also vary, it is readily apparent that if satisfactory results are to be obtained, an interponent must be provided which will adapt itself with facility to the particular conditions met with in any given case.

It is the purpose of my inventionto provide an interponent or cap which is adaptable to any diameter of insulator and support, and with this object in view, I 'c"on-' struct the cap of a comparatively thin material, so that, in order to fill the space betweenthe inner wall ofthe insulator (which said wall is usuall rovided with threads) and the support 0 t e insulator, there may be used two and in some cases, three to five caps which are superposed until the requisite thickness is attained.

position; and Fig. 3 is a perspective view of,

such cap.

In the drawing the support is indicated at 1, and is in direct contact with the interponent 3, over which the insulating member 2 isplaced. The caps which are preferably made of paper, but which may also be of Specification of Letters Patent. Application filed November 15, 1906- Serial No. 343:569.

Patented Jan. 7, 1908.

leaves which are folded so as to obtain thefluted ap 'earance shown in Fig. 2. In this manner t e material will increase in quantity or thickness towards the 0 en end or such as oil, pitch, ozocerite, wax or the like,

in order that the cap may considerably increase the insulation in those cases where the insulators have cracks, holes or the like. As is indicated in Fig. 1 the caps may be of a greater length than the screw threaded por tion of the insulator and may also be of varying lengths with respect to each other, whereby the insulation and the path for the conduction of the current along the surface of the parts is considerably increased. The separate caps used for fastening an insulator may be of. the same or of different kinds of material and may be impregnated with the sanlle or different kinds of insulating materia Having thus described my invention, what I claim as new and desire to secure by Let ters Patent is As an improved article of manufacture, an interponent for insulators of electrical conductors formed of a plurality of superimposed caps the sidesof which are provided with a series of folds to impart to the caps a relative amount of fullness, said caps being conical in form, whereby when ap lied to the supports the skirted portions of t e caps become massed to assist in the retention of the insulators upon their supports.

In witness whereof I have hereunto set my hand in presence of two witnesses.

CARL EMIL EGNER.

Witnesses:

CARL TH. SUNDHOLM, HANS B. OHLSSON. 

